Bill D
Diamond
- Joined
- Apr 1, 2004
- Location
- Modesto, CA USA
Site does not allow me to add more to my original message soo.. I will use flood water coolant. Chipping is not a concern. This is to mount grab bars. Stud finder does not work. I would guess quartzite is one inch thick or so. It is not quartz which is all I can find info about. That info is it is hard!
Bill D
Bill D